求几篇关于食品安全的外文文献

首先十分感谢你的好心帮助！
有这几篇：
1.Maze 。   Quality Signals and Governance St ructures within European Agro-food Chains : A New Institutional Economics Approach [ R ] .
Paper presented at the 78th EAAE Seminar and NJ F Seminar 330 , Economics of Contract s in Agriculture and the Food Supply Chain , Copenhagen , 2001 , 15 - 16June.
2.Hennessy D. A. , Roosen J . , Miranowski J . A.
Leadership and the Provision of Safe Food [ J ] .
American Journal Agricultural Economics , 2001 , (4) :
862 - 874.
3.Weaver R. D. , Kim T.
Contracting for Quality in Supply Chains [ R ] .
Paper presented at the 78th EAAE Seminar and NJ F Seminar 330 , Economics of Cont ract s in Agriculture and the Food Supply Chain ,
Copenhagen , 2001 , 15 - 16June.
4.Hudson D.
Using Experimental Economics to Gain Perspective on Producer Cont racting Behavior : Data Needs and Experimental Design [ R] .
Paper presented at the 78th EAAE Seminar and NJ F Seminar 330 , E2
conomics of Cont ract s in Agriculture and the Food Supply Chain , Copenhagen , 2001 , 15 - 16June.
5.Vetter H. , Karantininis K.
Moral Hazard , Vertical Integration , and Public Monitoring in Credence Goods[ J ] .
European Review of Agricultural Economics ,
2002 , (2) :271 - 279.
希望有条件的尽量找全，谢谢！

希望帮忙！可追加悬赏！

会议论文不太好找啊

谢谢哥们....你的文章是从哪找的，用的什么数据库 3# wangaihua